Lubricating device



Nov. 8, 1927.

c. E. BONNER wamcnme nnvrcz 4 Sheets-Sheet 1 Filed May 31, 1923 Nov. 8, 192 7.

. 1,648,440 C. E. BONNER LUBRICATING DEVICE 7 Filed May 31, 1923 4 Sheets-Sheet 2 Nov. 8, 1927.

1,648,440 C. E. BONNER "LUBRICATING DEVICE Filed May 31, 1923 4 Sheets-Sheet 5 (fare/2m Z. 507272627 Nov. 8, 1927;

C. E. BQNNER LUBRICATING DEVICE Filed May 31, 1925 4 Sheets-Sheet 4 ww w Mew

dare/266 l'fiozzizert @MMM Patented Nov. 8, 1927.

issue F GLARENZGEEEZBO-NNER, os-nnw'vonn;n. y., assreuo'n, 13y ransnn nssmnianixrrs aio DELA ARE: 1

application aema 31',

force o f th'ehexplosion tends .to sp'ringthe 6 cylinder wall-s outwardly and presses them against: the adjacent: sleeve valve Walls.

This pressure makes necessary thorough lubr cationin. order. to prevent undue i'llC- tion and Wear. insuch valves.

Ingmotorsequipped With valves of this.

type, there is a' tendency for the forces .ofthe explosion acting through the inlet portofthe inner cylinder and against the adjacent portion of thesleeve valve to force their way' between the sleeve valve and inner -cyli-nder. This pressure renders it difiicult ,to. adequately lubricate at this point since it forces the lubricant away at each explosion. It is thus also difficult. to pass lubricant upward between'thercylinder and sleevevalvewto adequately-lubricate the contacting surfaces of these members above the port-open ngs.

It-is an object of the'present invention to prov de: a construction in which passages are formed in. the sleeve. valvev member" adapted to couvey lubricant. to the upper portions of the construction. 7

It;is also an object to provide means of thisacharacter in Which means areprovided to ip revent back pressure upon the lubricant during the explosion period in theoylinder. It'i's'an additional objectto provide in such constnuctions 'a-plurality of oil pas:

sages'adapted to deliver. theoil at selected.

points upon the elevation of the engine It is-a further object tovprovide means ofi thischaracterin which the ,oil circulating through the passages in the sleeve valve tends to cool the sleeve valve and adjacent H parts.

Other and furtherobjects will appear as the description proceeds. v

I have illustrated certain preferred embodiments of my invention 'inythe accompanying drawings in' which;

motor;

'soemnusoeznursns ooaroaarion; osnov-nn, DELA ARE; A: corti one-Tremors LUBnIoA'rme nsvros. v J

r1923. serial No; 642,437.

tion, partly in elevation, showing oneform of; the invention ,applied to, a sleeve waive Figur 2 is a fragmenta 0n linei2'2f0fFigured;

l."gure 8"is a fragmentary section 'taken'::. on'line 3+3eFigure 2.. y

Figure 4 is a View simila tojEigure-i;

.showinga modifiedqform of construction; i

Eigurelfifis ashorizolitalasectionon. a're-. ducedscale'taken, on line 5, "5;of5'Ei,urei4 Figure 6- is a View: similar ftofFigurei1"? shovvinga further modifiedfor'm; i "1 Figure 7- is'a horizontal sectionflon a '1e570 duced scale taken on line 7 7-7of'F'igu'se,5j;'l

Figuret? is a horizontal'sectionfonifa re The member 17 -rests upon ringf18 ivhich is"' fitted upon shoulder 1'9'of1the outerncylin der member. The inner'cylinderinember20 is fitted Within the sleeve valve17a'nd is w provided at. its upper endowith fthe'jfiangefil which isseated in the '1 circumferential r"ecess :22 inflthe outer, cylinder member; 12.1 The-lower end of the cylinderjmember 20, is retain'ed'in place by the shoulder19, 425 The sleevevalve member 17, and the outer cylinder member '12 are provided with intor-fitting circumferential steps atpointsf23" and'24 and. located above and belolw the port-opening, 25. The interfitting facesofQI O the. sleeve valve 17" and inner e lin'der 20521156; 3

provided withgsiinilar steps at point 26 v and27. i The inner face offthe' sleeve valve member; Q .17 is, provided with the spiral,lubricatingL groove 28. The Y outer 'face of the inner 3 oyl j inder member 20 is provided Witlrthe mg. 1; versely extending spirallgroove 29, which is] w upon a steeper pitch than.the. groove .28., It V will .be noted thatthe groove 28fe'xtendslonly.

1y sectionitakenieo i upon the lower portion of the, sleeve valve while the groove 29 extends to a point above the port openings.

The shaft 14 and gears 15 and 16 are con tained in an oil reservoir and this reservoir communicates by means of notches 31 formed in the lower edge of the sleeve valve 17 with the interfitting surfaces of the sleeve wallof the sleeve valve member.

valve and inner cylinder member. The overflow drain 32 prevents the oil in thereservoir 30 from rising above a predetermined limit. d e

The inner cylinder member is formed with the shallow recesses 33 which extend in height the greater portion of the eifective pers 40, 41 and '42 are formed in the outer face of the sleeve valve member and lead to these radial bores, the rear end of the scupper being preferably coincident with the wall of the bore as shown in Figure 2. It will be understood that the sleeve valve normally' rotates in the counterclockwise direction consider-ed relative to Figure 2.

The pipes43,44' and 45 extend through 5 the outer cylinder member and are located upon different planes, each being located in the plane of one of the radial bores 37, 38 and 39. These pipes are controlled by valves, the valve 46 controlling pipe 44 and the valve 47 controlling pipe 45 as shown in Figure 1. As shown in Figure 2 the bores are spaced circumferentially the same distance as are spaced the pipes so that the pipes are in registration with their respective bores simultaneously.

As shown in Figure 1, the vertical bore 1 35 is provided with the enlarged upper portion 48 and with'the transverse bore 49 which extends through to both surfaces of the sleeve valve. The bore 36 is provided with a similar enlarged upper portion 50 v and with thetransverse bore 51 and the bore 34 is similarly constructed at its upper end. The ball valve 52 rests upon its seat formed at the junction of the bores 35 and 38 and is retained against upward displacement by pin 53. That portion of the .bore 48' above the cross bore 49 is filled by a plug It will'be .understood th'at the other bores are provided with similar ball check valves and have their portions above their transverse outlets filled with plugs. 'It will be noted that thebore 35 is adapted to discharge lubricant above the shoulders 27 but below the ports, whilev the bore 36 is adapted to discharge above the steps 26, and bore 34 below the shoulders 27.

Referring now to the form of construction shown in Figures 4 and 5,. the engineconstruction is exactly similar to that which has been already described. 7 The two vertically extending oil fitting bores 60 and 61 are spaced 180 apart. These bores are fed from the pipes 62 and 63, respectively, these pipes being controlled by valves 64 and 65. The bores 60 and 61 are provided with the ball check valves 66 and 67 similar to those described in connection with the first form. The bore 60 communicates with the transverse bore 68 located below the port, while the bore 61 communicates with the bore 69 located above the port.

The form of construction shown in Figures 6 to 10 is shown upon an engine which di'lfers slightly from that shown in the previous figures. In this form of construction the oil outlet passage 71 has its intake 72 located at a height above the upper limit of the gear 16. The sleeve valve member is provided with three spirally extending passages 73, 74 and 75. The lower ends of these passages intersect the transverse bores 76, 77

and 78, respectively, the relation of these bores being shown in Figure 6. Each of these bores is provided with a scupper as shown in Figure 6, which is located above the gear 16 but below the oil level in the reservoir. Each bore is provided at its upper portion with a ball check as shown in connection with bores 74 and in Figure 5.

The bore. 73 extends through approximate.

ly 120 as shown in Figure 7 and discharges at a point below the step 27. The bore 74 discharges above this step through the'axial bore 79. The bore 75 extends a full, circumference and discharges at abovethe step 26. It will be noted that the entrance .bores or all three oil passages are located in the same plane which planeis below the level of the oil in the oil reservoir as established by the passage 72. Consequently, all of the passages are continuously in communication with the oil supply. Back pressure is effectively prevented by means of the ball" check valves.

In the form of construction shownin Figure 11, the engine 18 similar to that shown in Figure 5 withthe exception that sleeve valve member 90 is thickerand is provided at its upper end with additional steps 91 and 92 upon the inner and outer faces, respectively. The two spiral lubricating bores 93' and 94 are provided in the sleeve valve, both bores communicating with the oil in the res ervolr.

The bore 93 noted that the inwardly extending portion of bore 95 is of greater diameter than the outwardly extending p'ortionx96. ,This dif- V dischargesoil through the cross bore 95 below the port. it will be grooves is covered by my prior application,

Figures 4 and 5, the method of oil feed and e me mo 'ference in' sizeids due -to thewfact' that centrifu gal i force tendsnto feedoutwardly; vationi is-accomplished. by the spiral grooves 2 which incline upwardly and rearward-1y rel Q'fithrough which. the .vejrticalwhore 94- discharges is similarly;smaller in its outenpon greateflamount 10f oil than; inwardly; if the boresate:ofithevsame size. The cross bore es an;additional;feature the sleeve valve 909is provided=-with the spirally; extend-ingfj passage 98 -which is fed through opening99' qlOfZ-fi-(EQCl bGlOW the oil level infthe reservoir.

This; spiral; passageopens 'atj lQOrin the 'uplper;surfacemf-thesleeve: val-ve aclearance x y I g s the G-XPlOSlVOIL may; cause the b21111: valves to being provided between-the npperend of the sleeve valve iand theflange 21- on: the 1111181 .ryjlindeu-member. The' Vertieally extending passage 101 formed in the outer-cyliaider member communicates with the clearance between"thettop 'of thefsleeve valve and cylinder and its lower end discharges into the oil discharge passage 72 leading from the oil reservoir.

In the operation of the form of construction shown in. Figures 1 to 3, the location of the vertical bores is so related to that of the ports that the bores register with their sage of the oil, but on the contrary, any leakage of pressure will be in the nature of a suction aiding in this movement of the oil. 2 It will be understood that the oil is fed through the pipes to the cylinder under pressure and this pressure is effective in in.

troducing the oil into the sleeve valve bores. The scuppers at the entrance of thebores may be made of any desired length so as to keep the bore in communication with the feedpipes for any'desired portion of the revolution of the valve member.

YVhile this form of lubrication has been shown as auxiliary to the lubrication of the related spiral grooves 28 and 29, it will be understood that it is in effect entirely independent of them and may be used upon engines in which these grooves are not present. The method of lubrication by these opposed Serial No. 459,699, filed April 8, 1921.

, While the bores have allbeen shownas feeding oil to both the inner and outer surfaces of the sleeve valve, it is obvious that the feedbores may be closed in one direction if desired so that each bore feeds only the inner or outer surface as preferred. In the form of constructions shown in distribution is similar to that of the first fig ures but the oil is simultaneously fed at points 180 apart upon the sleeve valve.

This feeding as in the other constructions, preferablytakes place during the suction stroke of the engine.

The form of construction shown in Figvalves-prevent back pressure duringathe e25 plosion in the cylinder. Inithis metho d,.,.o1'l

off'the oil to elevate'itinthe bones. Theiele-j ative to the direction of rotation of the sleeve-,valve. The t=scooping 1 action; and the in er-tia of the-zoil- -ini the-passages thus causes the; .oil. to be raised in thegroo'ves. In this construction-as in theeothers. thebal-l checlo is, continuously, fed-i throughout the; revolue tion;- .with. the exception of. suchperiods, as 1 9pai r i g a =The form ,of construction shown .,1n -Fig '1 urea. 11 :aalSo relies. upbn the .Iscooping .,action anditheirotation fw ae amgihe oil, Ith'e 'f lubricating passages being continuously communication with the (511" in the reservoir; The oil is similarly elevated in the spiral cooling passage and-returns by gravity from the top of the cylinder to the oil sump in the crank case.

In this form of construction the additional steps above the transverse oilingbore 97 prevents leakage of the coolin oil down to add.

to the lubricating oil. Ifowever, in some constructions, it may be desirable to omlt this step and the upper transverse lubrlcating bore and to permit a portion of the cooling fiow'to serve to lubricate the upper portion of the contacting faces.

In this form of construction the outer portions of the transverse discharge bores have been made smaller than the inner portions so as to equalize the oil distribution upon the outer and inner surfaces. This variation is necessary because of theefi'ect of centrifugal force in throwing the oil outwardly. By proper variation in the relative sizes of these portions of the bores the distribution of oil inwardly and outwardly may be properly co-o-rdinated.

Vhile I have illustrated certain preferred embodiments of my invention, it is obviously capable of further modification to meet 9 to cover such modifications as come within the scope of 'I claim; V l. Lubricating means for sleeve'valve motors comprising means adapted to supply lubricant to the sleeve valve, a passage formed in the sleeve valve and adapted to convey lubricant to a portion of the sleeve surface spaced from the lubricant supply, and means adapted to prevent a reverse fluid flow in said passage. of

2.'In an internal combustion engine, a sleeve valve, a fluid conveying passage formed in'the sleeve valve member, and

means in said passage adapted to limit fluid j flow therethrough to one direction.

8. In an internal combustion engine, a

the appended claims. M

varying conditions and it is my intention sleeve valve, a fluid conveying passage formed in the" sleeve valve member, and a ball check-valve in said passage adapted to limit fluid flow therethrough to one 'direc} tion.

4. In an internal combustion engine, a sleeve valve, a port extending through said sleeve valve member, a fluid passage formed veying passage formed insaid valve member, inlet and discharge openings extending sleeve from said passage through the Walls of the valve member, and a fluid reservoir in communication With said inlet opening, the incline'd passage extending-upwardly and rear- Wardly'relative to the direction of normal 3? rotation of the valve member.

6. In an internal combustion engine, a

valve, a fluid conveying passage formed in said valve member, intake and discharge openings extending from the pas-- sage through the valve Wall, the discharge" openings extending to both the inner and outer 'faces of the valve member, and the opening upon the inner face being greater in area than that upon the'outer face;

day of May, 1923.

'CLARENG'E E."BONNER.

Signed at New York,' NeW-York,this 23rd 35 

